Hygiene - Ubisi Mail Magazine
Hygiene - Ubisi Mail Magazine
Hygiene - Ubisi Mail Magazine
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Concentration: The right amount of soap, acid and sanitiser must be used for the amount of<br />
water. Do not waste money by trying to save on the wrong things.<br />
Time: Every milk machine must be washed for a different length of time. The time must not<br />
be shorter than 6 minutes and not longer than 10 minutes. The temperature of the water for<br />
washing will determine the time for washing. The temperature of the water for washing must<br />
never be lower than body temperature. The milk tank is washed with a cleaning agent that<br />
foams to determine the time. The time that the foam takes to run down the sides of the tank,<br />
gives the soap the chance to work.<br />
Action: Action is achieved in the milk tank by using a tank brush. Action is achieved in the<br />
milk machine by letting in air at the suction pipe at the washbasin. The suction pipe must let<br />
in air for 3 seconds before the milk pump lets the water for washing run out in the washbasin.<br />
Longer than 3 seconds will cool down the water for washing too quickly.<br />
Washing programme for the milk machine<br />
Step 1 Rinse the milk machine with cold water. Lukewarm water is very dangerous as lukewarm<br />
does not feel the same for everyone. Water that is too hot will result<br />
in protein forming a layer in the equipment.<br />
Step 2 Wash the milk machine with warm (±75ºC) water and soap for<br />
between 6 and 10 minutes.<br />
Step 3 Rinse the milk machine with sanitiser in cold water ±3<br />
minutes.<br />
Step 4 Drain all water for washing from the equipment.<br />
Acid step Depending on the hardness (amount of lime) of the water,<br />
the milk machine must be washed with an acid once or twice a<br />
week. It can be cold water for 10 minutes. The acid step is done after<br />
Step 2 and before Step 3.<br />
Washing programme for the milk tank<br />
Step 1 Rinse the last milk out of the tank with cold running water (use a hose-pipe).<br />
Step 2 Mix a solution of ±15 litres warm water (75ºC) and foaming soap in a<br />
plastic bucket. Place the bucket in the tank and wash the milk tank with a<br />
brush from top to bottom. Use a bucket because it helps to maintain<br />
the temperature of the water. Do not forget to wash the tank outlet<br />
and gauge/yardstick.<br />
Step 3 Sanitise the milk tank by applying the sanitiser with a spray<br />
bottle or by washing the tank with a tank brush.<br />
Step 4 Drain the sanitising water.<br />
Acid step The milk tank must be washed with a strong acid once a week<br />
to remove lime scale. This step is done after Step 2 and before Step 3.<br />
IMPORTANT: Never rinse<br />
the milk machine again<br />
with clean water after it<br />
was sanitised.<br />
IMPORTANT: Never the<br />
rinse the milk tank with<br />
clean water after it was<br />
sanitised.<br />
UBISI MAIL | APRIL 2005 21